Access

The access to this dataset is restricted to the members of the
AMMA_INT group. Please sign in to access this dataset. If you don't
have an ID yet, you can apply for an account at the AMMA databases main site.

Once you have got your login and password, you can access data by several ways :

With your WEB browser
:ftp://
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/. You will be prompted
for your password, then the system will log you on top of the ECMWF
tree structure. Go into AMMAMOD/priv/ECMWF/OPERA/. To download a file,
click on the file name with your right mouse button.

With the UNIX ftp command : type : ftp ftp.bddamma.ipsl.polytechnique.fr
you will be prompted for you name and password, and logged on top of
the above described file tree. Navigate the tree with the command cd. Go into AMMAMOD/priv/ECMWF/OPERA/. Download the file(s) with the commands get or mget.

With sophisticated ftp tools : Once you are familiar with this
directory structure, you can use other ftp tools which allow you to
download files in the background, during night, and which are able to
restart the transfer in case of interrupts. At IPSL we used GNU wget.